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Explore the hidden underground world beneath Toronto's streets in this 19-minute documentary video that reveals how over 3,400 miles of tunnels, storm drains, and pumping stations replaced the city's natural waterways. Discover the fascinating transformation of Toronto's lost rivers, including Garrison and Taddle Creek, into one of North America's largest underground sewer networks. Learn how politics, public health crises, and rapid urban growth led to the burial of these waterways, creating a forgotten layer of the city's history where open water now flows in darkness through massive engineering projects that forever reshaped Toronto's landscape.
